External power supply and the level shifters to interface SIM class C and class Bhttps://devzone.nordicsemi.com/f/nordic-q-a/52883/external-power-supply-and-the-level-shifters-to-interface-sim-class-c-and-class-bHi, I&#39;m looking for a solution to use a SIM Card Power Supply With Level Translator for nRF910. Do you think this is possible? Thanks.en-USTelligent Community 13Wed, 09 Oct 2019 12:04:17 GMTRE: External power supply and the level shifters to interface SIM class C and class Bhttps://devzone.nordicsemi.com/thread/214153?ContentTypeID=1Wed, 09 Oct 2019 12:04:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cfc9cd86-6e72-4c7b-ac1a-7127fb3a3bd6Simon<p>I got the following reply regarding using a level shifter:</p> <p style="padding-left:30px;"><em>&quot;From HW point of view I do not see any issue why this would not work.&nbsp;</em><em>But for more</em></p> <p style="padding-left:30px;"><em> detailed analysis of HW, we would need a schematic how they have setup the SIM interface&quot;</em></p> <p>Could you share the schematics? You can do it in a private ticket (ticket 237063) if you prefer to.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>RE: External power supply and the level shifters to interface SIM class C and class Bhttps://devzone.nordicsemi.com/thread/213686?ContentTypeID=1Mon, 07 Oct 2019 13:44:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:342f934b-cf87-46c4-bb2d-e28abfd27c81Simon<p>I&#39;ve asked internally about this and I&#39;m currently waiting for an answer.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>